Box"> <view bindtouchstart="touchS" bindtouchmove="touchM" bindtouchend="touchE" data-index="{{index}}" style="{{item.txtStyle}}" class="inner txt">
{{item.rank}}
<image class="item-icon" mode="widthFix" src="{{item.icon}}">
{{item.name}}
<span class="item-data">

<i class="rankpace"&gt; {{item.pace}}</i>
<!-- <span class="rankxin"&gt;{{item.xin}}</span> -->

<view data-index="{{index}}" bindtap = "delItem" class="inner del">删除

Box-sizing: border-Box; } .item-Box{ width: 700rpx; margin: 0 auto; padding:40rpx 0; } .items{ width: 100%; } .item{ position: relative; border-top: 2rpx solid #eee; height: 120rpx; line-height: 120rpx; overflow: hidden;

}

.item:last-child{
border-bottom: 2rpx solid #eee;
}
.inner{
position: absolute;
top:0;
}
.inner.txt{
background-color: #fff;
width: 100%;
z-index: 5;
padding:0 10rpx;
transition: left 0.2s ease-in-out;
white-space:nowrap;
overflow:hidden;
text-overflow:ellipsis;
}
.inner.del{
background-color: #e64340;
width: 180rpx;text-align: center;
z-index: 4;
right: 0;
color: #fff
}
.item-icon{
width: 64rpx;
height: 64rpx;
vertical-align: middle;
margin-right: 16rpx;
margin-left:13px;
border-radius:50%;

}

.item-data{
float: right;
margin-right:5%;}

.rankpace{
color: #fa7e04;
}

删除按钮宽度单位（rpx） },onLoad: function (options) { // 页面初始化 options为页面跳转所带来的参数 this.initEleWidth(); this.tempData(); },onReady: function () { // 页面渲染完成 },onShow: function () { // 页面显示 },onHide: function () { // 页面隐藏 },onUnload: function () { // 页面关闭 },touchS: function (e) { if (e.touches.length == 1) { this.setData({ //设置触摸起始点水平方向位置 startX: e.touches[0].clientX }); } },touchM: function (e) { if (e.touches.length == 1) { //手指移动时水平方向位置 var moveX = e.touches[0].clientX; //手指起始点位置与移动期间的差值 var disX = this.data.startX - moveX; var delBtnWidth = this.data.delBtnWidth; var txtStyle = ""; if (disX == 0 || disX < 0) {//如果移动距离小于等于0，文本层位置不变 txtStyle = "left:0px"; } else if (disX > 0) {//移动距离大于0，文本层left值等于手指移动距离 txtStyle = "left:-" + disX + "px"; if (disX >= delBtnWidth) { //控制手指移动距离最大值为删除按钮的宽度 txtStyle = "left:-" + delBtnWidth + "px"; } } //获取手指触摸的是哪一项 var index = e.target.dataset.index; var list = this.data.list; list[index].txtStyle = txtStyle; //更新列表的状态 this.setData({ list: list }); } },touchE: function (e) { if (e.changedTouches.length == 1) { //手指移动结束后水平位置 var endX = e.changedTouches[0].clientX; //触摸开始与结束，手指移动的距离 var disX = this.data.startX - endX; var delBtnWidth = this.data.delBtnWidth; //如果距离小于删除按钮的1/2，不显示删除按钮 var txtStyle = disX > delBtnWidth / 2 ? "left:-" + delBtnWidth + "px" : "left:0px"; //获取手指触摸的是哪一项 var index = e.target.dataset.index; var list = this.data.list; list[index].txtStyle = txtStyle; //更新列表的状态 this.setData({ list: list }); } },//获取元素自适应后的实际宽度 getEleWidth: function (w) { var real = 0; try { var res = wx.getSystemInfoSync().windowWidth; var scale = (750 / 2) / (w / 2);//以宽度750px设计稿做宽度的自适应 // console.log(scale); real = Math.floor(res / scale); return real; } catch (e) { return false; // Do something when catch error } },initEleWidth: function () { var delBtnWidth = this.getEleWidth(this.data.delBtnWidth); this.setData({ delBtnWidth: delBtnWidth }); },//点击删除按钮事件 delItem: function (e) { //获取列表中要删除项的下标 var index = e.target.dataset.index; var list = this.data.list; //移除列表中下标为index的项 list.splice(index,1); //更新列表的状态 this.setData({ list: list }); },//测试临时数据 tempData: function () { var list = [ { rank: "1",txtStyle: "",icon: "/images/my.png",name: "李飞",pace: "23456",},{ rank: "2",name: "张叶",pace: "23450",{ rank: "3",name: "王小婷",pace: "22345",{ rank: "4",name: "袁经理",pace: "21687",{ rank: "5",name: "陈雅婷",pace: "21680",{ rank: "6",name: "许安琪",pace: "20890",{ rank: "7",name: "里俊飞",pace: "20741",{ rank: "8",name: "李小俊",pace: "19511",{ rank: "9",name: "陈俊飞",pace: "19501",] // this.setData({ list: list }); } })